A good, and well trained, shoe fitter, used to hiking boots, will expect you to go up and down the ramps, twist, turn etcetera, watches you walking, asks you questions about the fit, width heels, ankles etc., and still be feeling to see if the boots really do fit. At least in my experience. A useless shoe fitter asks your size, price range and dumps loads of boots in front of you, walks away, may ask you if you're OK, and lets you decide.